Strana 1056 z 1153
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Poznámky redaktora
Suf ciently large ventilated rooms which the ambient temperature not noticeably increased the heat
losses from the cables.
Installation
in open air face without surface with tubes, conduites,
inter-contact inter-contact cabinets
Conversion factors table table table 3
for grouping
Cross-section, mm2
Current ratings Ampere (A) 30° ambient temperature
0,25 7
0,33 15´ 9
0,50 10
0,75 13
1,0 17
1,5 20
2,5 26
4 36
6 46
10 121 116 64
16 160 152 106 85
25 211 200 140 111
35 261 248 172 138
50 320 304 211 169
70 411 391 272 217
95 502 476 331 265
120 587 558 387 310
150 680 646 449 359
185 781 743 516 413
240 931 884 614 492
Conversion factors for grouping
Number single core cables 12
for 2-phase 3-phase systems
Table Factor 1,00 0,94 0,90 0,90 0,90 0,90 0,90 0,90 0,90 0,90 0,90
Table Factor 1,00 0,85 0,79 0,75 0,73 0,72 0,72 0,71 0,70 –
Table Factor 1,00 0,80 0,70 0,65 0,60 0,57 0,54 0,52 0,50 0,48 0,45
Conversion factors for deviating ambient temperatures
Temperature 100 105 110 115
Factor 1,05 1,00 0,94 0,88 0,82 0,75 0,67 0,58 0,53 0,47 0,41 0,33 0,24
CURRENT RATINGS FOR HELUTHERM®
145
Operting temperature conductor 120°.1073
Y
For permanent operating the ambient temperature 30° Conversion factors for the deviating site operation
conditions see tables below. Protection should taken from the solar radiation etc